Data breach

KomikoAI data breach

1,060,191 accounts · breached February 25, 2026

What happened

In February, the AI-powered comic generation platform KomikoAI suffered a data breach. The incident exposed 1M unique email addresses along with names, user posts and the AI prompts used to generate content. The exposed data enables the mapping of individual AI prompts to specific email addresses.

Description by Have I Been Pwned

What data leaked

  • AI prompts
  • Email addresses
  • Forum posts
  • Names

What to do if you had an account

  1. Turn on two-step sign-in. Enable two-factor authentication where the service offers it, preferably with an authenticator app or a passkey. A leaked password alone is then not enough to get in.
  2. Expect targeted phishing. Leaked contact details are used to write convincing fake messages that mention the breached company or your real name. Do not click links in unexpected emails or texts about this account; go to the site by typing its address.

Check your email at haveibeenpwned.com

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